[PULL] MIPS fixes for v2020.04

[Daniel Schwierzeck]

Hi Tom,

actually I've prepared this pull reuqest some weeks ago but was quite busy
since then to finally send it. This is just small stuff whcih can't break
anything. It would be great if you could sqeeze it in the release, thanks.

Gitlab: https://gitlab.denx.de/u-boot/custodians/u-boot-mips/pipelines/2695
Travis CI: https://travis-ci.org/github/danielschwierzeck/u-boot/builds/673086037


The following changes since commit dfd5321becc54d7ce9fd564aaaba70a2132c058e:

  Merge tag 'u-boot-imx-20200408' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx (2020-04-08 12:06:39 -0400)

are available in the Git repository at:

  git://git.denx.de/u-boot-mips.git tags/mips-fixes-for-2020.04

for you to fetch changes up to fb9acad30562177287d8cffec19e5dfa6f072de7:

  mips: cmd: go: Flush cache before jumping to app/image (2020-04-09 19:00:00 +0200)

----------------------------------------------------------------
- doc: fix code examples in qemu-mips.rst
- mips: vcoreiii: fix memtest and cache coherency issues
- cmd/go: fix cache coherency issues on MIPS

----------------------------------------------------------------
Alex Nemirovsky (2):
      MIPS: allow override of flush_dcache_range()
      MIPS: allow override of get_tbclk()

Heinrich Schuchardt (1):
      doc: board: qemu-mips.rst: fix code examples

Lars Povlsen (2):
      mips: vcoreiii: Ajust CONFIG_SYS_MEMTEST_END
      mips: vcoreiii: Fix cache coherency issues

Stefan Roese (1):
      mips: cmd: go: Flush cache before jumping to app/image

 arch/mips/cpu/time.c                   |   2 +-
 arch/mips/lib/Makefile                 |   1 +
 arch/mips/lib/boot.c                   |  23 +++++++++++++++++++++++
 arch/mips/lib/cache.c                  |   2 +-
 arch/mips/mach-mscc/cpu.c              |   9 +++++----
 arch/mips/mach-mscc/dram.c             |  14 +++++---------
 arch/mips/mach-mscc/include/mach/ddr.h |   4 ----
 arch/mips/mach-mscc/lowlevel_init.S    |  17 ++++++++++++++++-
 doc/board/emulation/qemu-mips.rst      | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------------------------------
 include/configs/vcoreiii.h             |   3 ++-
 10 files changed, 114 insertions(+), 69 deletions(-)
 create mode 100644 arch/mips/lib/boot.c